This part of the tutorial shows how to create a manager and its view, and how to load a file containing graphic objects into the manager. The manager organizes sets of graphic objects into multiple views and layers and provides the possibility of higher-level interactions. These features are brought out as the tutorial progresses. When running the Sample1 example, the first step to this tutorial, you see a scrolling window displaying a map of the United States.

Explanations of the Sample1.java file follow.